Disk for disk harrows.



A. E. P0X 6; G. M. EEEvEs.

DISK FOR DISK HARROWS APPLIOATION'PILED DEO.29,1908.

Patented Aug. 10, 1909.

W, Aitorney UNITED STATES, PATENT oEEioE.

ALFRED E. FOX AND GEORGE M. REEVES, OF REDKEY, INDIANA, ASSIGNORSOF-ONE-FOURTH TO WILLIAM WILLIAMS AND TO BENJAMIN W. WHITEHAIR, OFREDKEY, INDIANA.

DISK FOR DISK HARROWS.

Specification of Letters Patent.

Patented Aug. 10, 1909.

Original application filed September 29, 1908, Serial No. 455,271.Divided and this application filed. December 29,

1908. Serial No. 469,788.

To all whom it may concern.

Be it known that we,'ALERED E. Fox and GEORGE M. REEvEs, citizens of theUnited States, and residents of Redkey, in the county of Jay and Stateof Indiana, have invented certain new and useful Improvements in Disksfor Disk Harrows, of which the following is a specification.

The matter hereinafter described was formerly included in a certainapplication for patent on improvements in disk harrows, filed September29, 1908, and given Serial No. 455,271, and this application is adivisional application thereof.

The invention relates to disks used in diskharrows, and has for itsobject the provision of an improved construction of disks made up of aseries of detachable blades, each having a sharpened curved edgeeccentric to the periphery of the disk, the rear edges of the bladesbeing on substantially radial lines to the disk, and the points formedby the curved and straight edges bent to one side to form flukes thatturn the soil when leaving the ground.

The construction of our improved disk will be described in detailhereinafter and illustrated in the accompanying drawings, in which-Figure 1 is a rear view ofa wheel harrow showing our improved disksinstalled thereon; Figs. 2 and 3, side and end views of one of thedisk-hubs; Figs. 4 and 5, side and edge views of one of the disk-blades;and Fig. 6, a side View of one of the disks and hubs assembled.

In the drawings similar reference characters indicate correspondingparts throughout the several views.

A indicates a barrow-frame mounted on wheels B and having a rectangularshaft C, on which is mounted our improved disks.

The disks consist of a hub 1, having a rectangular base 2 to fit shaft0, and each hub is provided with a flange 3, having a radial projection4 extending from each side of the hub adjacent to one edge to the outeredge of the flange to form sockets to receive the blades 5, that areprovided with rectangular notches 6 to engage the surface of the hubinclosed between each pair of pro-' jections.

Each blade 5 has an edge 7 that begins at the periphery of flange 3 andcurves outwardly and to the. rear, while its rear edge 8 issubstantially parallel to the radial line of the hub. The curved edge 7is formed with a cutting edge and the rear portion of each blade is bentlaterally, as shown at 9, said bent portions extending toward the sidesof the machine at each side of its middle, as clearly shown in Fig. 1.

It will be apparent that when the disks engage the soil the cuttingedges 7 cut the clods while the bent portions 9 act as rollers to mashand pulverize them, and when lifted from the soil at the rear of thedisksaid bent portions turn the soil engaged thereby and leave it light andloamy.

If desired, the hubs and blades may be so constructed that the middle ofthe blades on the alternate hubs are opposite the points on the adjacentdisks, as shown in Fig. l, but

this is not essential to a complete and satis jecting from said base,and radial projections extending obliquely from the sides of said baseto the outer edge of the flange, and

blades secured to said hub having a curved and sharpened front edge, therear edge straight and substantially parallel to the radius of the hub,the'point formed by said edges bent laterally, the inner edges of saidblades formed with rectangular notches to engage the corners of thehub-base between the projections, substantially as shown and described.

2. A barrow-disk comprising a hub, said hub having a rectangular base aflange extending from said base, and projections extending from eachside of the base, obliquely to said side and radially of the flangeforming sockets with rectangular oflsets, blades mounted in said socketshaving rectangular notches in their edges to fit the corners of thebase, and a clamping washer secured through said flange and blades,substantially as shown and described.

3. A harrow-disk comprising a hub, said hub having a rectangular base aflange extending from said base, and projections extending from eachside of the base, obliquely to said side and radially of the flangefor1ning sockets with rectangular offsets, blades mounted in saidsockets having rectangular notches to engage the corners of the base,said blades having curved and sharpened front edges, the rear edgesstraight and substantially parallel to the radius of the hub,

and the point formed by said'edges bent laterally, and a clamping washersecured H. M. SARTELLE, DAVID NICKLIN.

